Complete the following sentences：

题目

Complete the following sentences：
1、Some factories often p____dirty water.
2.We often keep classroom clean and t_____
3.N____ of us has been to Summer Place.
4.Excuse me,have you got any books o___ science?
5.Have you ever p_____ apples?
9.I am afraid you must p___ for the losrt book.

答案

1.produce.一些工厂经常制造脏水.
2.tidy.我们经常保持教室干净整洁.
3.Neither.我们两个谁也没有去过颐和园.
4.on.打扰一下,你们这有关于科学方面的书籍吗?
5.picked.你摘过苹果吗?
6.pay.你恐怕必须要为丢失的书付款.